Window-screen.



W. J. BAKER.

WINDOW SCREEN.

APPLICATION FILED JULY 23, 1909.

Patented Oct. 3, 1911.

WITNESSES.

UNTE ll.

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Specification of Letters Patent.

Patented Oct. 3,1911.

Application filed July 23, 1909. Serial 1\lo. 509,156.

To all whom it may concern:

Be it,- known that I, VILLIAM J. BAKER, residing at Newport, in the county of Campbell and State of Kentucky, have invented certain new and useful Improvements in \Vindow-Screenmof which the following is a specification.

My invention relates to certain new and useful improvements in that type of window screens disclosed in my Patent No. 787,818, April 18, 1905, and in my Patent No. 834,443, October 30, 1906, and my Patent No. 890,398, granted June 9, 1908.

My present invention has for its object to provide a screen having a frame wherein the screen part is removably held, such frame being constructed of one form in cross section for the top and bottom bars and another form in cross section for the side bars, whereby a rigid top and bottom bar may be had with closed edges and the side bars may be provided with channels to receive the guide strips of the window casing.

' My invention also includes those noveldetails of construction, combination and arrangement of parts, all of which will be first fully described and then specifically pointed out in the appended claims, reference being had to the accompanying drawings, in which:

Figure 1, is side elevation of a window casing showing my screen in position. Fig. 2, is a cross section of the screen on the line 22 of'Fig. 1. Fig. 3, is a cross section of the screen on the line line 3--3 of Fig. 1. Fig. 4, is a detail view similar to Fig. 3, showing how the screen side may be made of two piecesinsteadof one.

Referring now to the accompanying drawings in which like letters'and numerals of reference indicate like 'parts in all of the figures, it will be seen that T designates the top section of the frame, B, the bottom section and S the side section, while the corner brace plates are designated by C.

In my present screen I construct the top and bottom sections T and B respectively of the screen frame with a closed edge and the sides S with an open edge to receive the guide strips 5 of the window casing 6. The purpose of this is two-fold. First, by this construction I am enabled to use wooden guide strips 5 in lieu of the usual U-shape metallic guides necessary when the screen is made with closed edged sides as in the type of screen disclosed in my patents herinbefore referred to. Again, by constructing the screen in the manner herein disclosed the advantages ofthe closed frame screen are retained, while at the same time material reduction in the cost of manufacture is possible.

The screen embodying my present invention comprises a top section T, a bottom section B and side sections S joining the top and bottom sections and braced by corner braces C, as before stated.

The top and bottom section each comprise a metallic body havingthe sides 1, ofi'set as at 1 to form a portion 1 parallel to the side proper 1, the portion 1 merging with a bent over part 1 that forms the inner edge, 11. 6., that next to the wire cloth 4, ofthe screen. The part 1 has its edge bent back upon itself as at l to prevent cutting the screen cloth and also to aid in retaining the locking strip, hereinafter referred to, in position. The outer edge 1 joins the side 1' with that 1*,- the side 1 lying parallel with the side 1., but of shorter length in cross section than the side 1,; to leave a locking strip receiving groove 1 in the side of the screen frame sections T and B, the side I terminating in a portion 1 bent over to project toward the side 1 and form a resilient wall to cooperate with the edge wall 1 and the bent back part 1 to' form a resilient clamp for the combined locking strip or rod and bracing strip 3, that holds the wire cloth 4 in place.

The side sections S are each composed of a sheet metal plate bent over upon itself as at 2, and then away from itself at approximately right angles as at 2, bent parallel with the first part as at 2 to form parallel sides 22, the side 2* being'of less length than the side 2.

The bent back or folded part 2 is bent over as at 2 to form the inner edge of the side section and together with the part 2 forms the clamping means to retain the locking strip 3 in the groove 2 formed by the parts 2 2 and 2". 7

As the screen sides are open on the outer edges to receive the guide 5, no bracing or stiffening rod can be used on the insides of the screen sections, as in my patents hereinbefore referred to, and in order to retain the benefits of the stiffening rod and effect the required stiffness of the frame 1 form the locking strip 3 of a solid or tubular rod,

all in one length,- extending completely around in the screen receiving channel, l 2

In practice the Wooden guide strips are secured to the outer bead of the window frame and the screen positioned as shown in Fig. 1 of the drawing.

The usual handles H may be provided on the screen as shown.

From the foregoing description taken in connection with the accompanying drawings, it is thought the complete construction, operation and advantages of my invention will be readily understood by those skilled in the art to which it appertains.

What I claim is:

1. A Window screen comprising a sheet metal frame consisting of top and bottom sections joined by side sections, the top and bot-tom sections being of hollow closed form and the side sections of open edge hollow form to receive guide strips, a screen cloth and locking strip receiving channel formed .in the top, bottom and side sections to form a continuous channel, a screen cloth having its edges held in said channel, and a single locking strip held in said channel to retain the screen cloth.

2. In a Window screen frame having a continuous cloth receiving channel to receive the edges of the screen cloth, and a single solid and rigid locking and stiffening rod held in said channel to clamp the edges of the cloth to the frame said frame having resilient portions to hold said looking and stifl'ening rod in said channel.

3. A sheetmetal window screen frame formed of top, bottom and side sections, the top and bottom sections having their outer and inner edges closed and the side sections having their outer edges opened to receive guide strips, all of said sections having a locking strip and screen receiving. groove, and a locking strip held in said groove against the screen cloth to'retain the same in the groove.

4. In a window screen, a frame including a sheet metal hollow member consisting of a pair of relatively substantially parallelly disposed side sections 1l* terminating in bent over portions l -1 respectively, such bent over portions projecting in'opposite directions and spaced apart to form a channelway, the edge of said bent over portion 1 being bent back upon itself, a wire screen projected into said hollow member through said channelway, and a solid locking and stiffening rod of circular cross section held in said channelway by said bent over portions, an edge wall 1. joining said parallel sides 11, and said bent over edges 1 1 being resilient to resiliently clamp said rod, all being arranged substantially as shown and described.

. WILLIAM J. BAKER. Witnesses:

JOHN MOSPENB, MATT. MOORE. 

